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herbu · Apr 15 '10, 02:19 AM

Thanks again, akdemirc,

Now I am clearer at the newly defined class. I slightly revise the codes
on Vector.h. It would be very much apprepciated in case I could learn your opinions on the revised codes.

Vector.h (ps: When need to activate the function of checking index of array/matrix boundary, we need to define the flag CHECK_VECTOR_IN DEX.)

Code:

#include <iostream>
#include <stdio.h>

...

herbu · Apr 14 '10, 08:38 AM

Thanks Akdemirc,

Yes, it is my fault to forget "#define CHECK_VECTOR_IN DEX" such that the operator overloading in "Vector" is not activated. After defining CHECK_VECTOR_IN DEX, "tmp[0][-1] = 1.00" would be checked.

However, do you know the meaning of "const T &operator[] (int) const;"
I learned this from a slides which said it is used to check the boundary when the...

herbu · Apr 11 '10, 09:23 AM

Thanks akdemirc,

However, with this, when declare
Matrix<double> tmp;
tmp.assignName( "tmp", 3, 4, 0.00);

When trying to
"tmp[-1][0] = 1.00;" we could see the error message due to operator loading
"template <class T>
Vector<T> &Matrix<T>::ope rator[] (int idx) "

However, it could not check "tmp[0][-1] =...

herbu · Apr 8 '10, 12:24 PM

Many thanks Akdemirc,

But in this way, I could not use the object of "Matrix" just like a regular 2-dimensional array. For example, to access the matrix as

Matrix tmp;
tmp.assignName( "tmp", 3, 4, 0.00);

for(int rowIdx = 0;rowIdx < 3;rowIdx++) {
for(int colIdx = 0;colIdx < 4;colIdx++) {
tmp[rowIdx][colIdx] = input[rowIdx][colIdx];
...

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How to define a new class "Matrix" based on "Vector<Vector<T>>"?